1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Goshia [24]
3 years ago
12

Do you think crystals formed in conditions that were stable or did they change often?

Chemistry
1 answer:
andreev551 [17]3 years ago
6 0

Answer:

They were made in unstable conditions

Explanation: Im smarty pants

You might be interested in
2Cu+S→Cu2S
xenn [34]

15.9 grams is the amount of copper sulfate this reaction will produce.

Given:

  • The reaction between copper and sulfur:

2Cu +S\rightarrow Cu_2S

  • 12.7 grams of copper completely reacts with 3.2 grams of sulfur to give copper sulfide.

To find:

The mass of copper sulfide produced

Solution

Mass of copper used by the scientist = 12.7 g

Mass of sulfur used by the scientist = 3.2 g

Mass of copper sulfide this reaction will produce. =?

According to the law of conservation of mass:

Total mass of reactants = Total mass of products

The total mass of reactants in the reaction = R = 12.7 g + 3.2 g = 15.9 g

The total mass of product formed in the reaction = P

P = R = 15.9 g

Mass of copper sulfide this reaction will produce = 15.9 g

15.9 grams is the amount of copper sulfate this reaction will produce.

Learn more about the law of conservation of mass:

brainly.com/question/14236219?referrer=searchResults

brainly.com/question/101125?referrer=searchResults

3 0
3 years ago
Which examples represent chemical changes? Check all that apply.
VARVARA [1.3K]

Answer: Burning wood, souring milk, browning of a cut apple

5 0
3 years ago
Read 2 more answers
Calculate the cell potential, the equilibrium constant, and the free energy change for
Tresset [83]

Answer:

Explanation:

Ba(s) + Mn²⁺ (aq,1M)  →      Ba²⁺ (aq,1M) + Mn(s)

Ba⁺²(aq) +2e →  Ba(s) ,  E° =  −2.90 V  

Mn⁺²(aq) +2e → Mn(s),  E⁰  =0.80 V

Anode reaction :

Ba(s)  →  Ba⁺²(aq) +2e        E° =  −2.90 V  

Cathode reaction :

Mn⁺²(aq) +2e → Mn(s)          E⁰  =0.80 V

Cell potential = Ecathode  - Eanode

Ecell  = .80 - ( - 2.90 )

Ecell = 3.7 V .

equilibrium constant ( K ) :

Ecell = .059 log K  / n

n = 2

3.7  = .059 log K  / 2

log K = 125.42

K = 2.63 x 10¹²⁵ .

Free energy change :

ΔG = - n F Ecell

= - 2 x 96500 x 3.7

= 714100 J

= 7.141 x 10⁵ J .

5 0
3 years ago
Solid mercury (II) oxide produces liquid mercury and oxygen gas
Nina [5.8K]

Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas. Mercury(II) oxide is a red solid. When it is heated, it decomposes into mercury metal and oxygen gas. A reaction is also considered to be a decomposition reaction even when one or more of the products are still compounds.

7 0
3 years ago
Which is the molar mass of BF3?<br> 10.81 g/mol<br> 29.81 g/mol<br> 48.81 g/mol<br> 67.81 g/mol
kondor19780726 [428]

 The molar mass of BF3  is  67.81  g/mol


  <em><u> Explanation</u></em>

  •  Molar mass   is the  mass  of all  atoms  in a molecule  in gram per  mole.
  • molar mass  of a molecule is calculated by adding  atomic mass  of constituent  atom
  • use the periodic table  to determine the atomic mass of each element in the  molecule.

that is;

         atomic mass of B = 10.81 g/mol

         atomic  mass of F  = 19 g/mol

  • since there 3 atoms  of F  in BF3 the  atomic massof F in BF3=  3 x19  =  57 g/mol
  • total molar  mass of BF3 = 10.81 g/mol + 57 g/mol = 67.81  g/mol
5 0
3 years ago
Read 2 more answers
Other questions:
  • Select all of the items that are true about a sample of water vapor at 101°C as it cools.
    6·2 answers
  • Describe the ammonium ion, NH4+, and the sulfate ion, SO42-. What compounds would these ions form with potassium and fluoride io
    13·2 answers
  • WEATHER PREDICTIONS FROM
    13·1 answer
  • How can a can a constant pressure calorimeter be used to measure the heat transferred from a hot piece of silver to cool water.
    13·1 answer
  • What is the chemical equation for aluminium chloride
    5·1 answer
  • For the reaction N2(g) + 3H2(g) 2NH3(g), what will happen if more nitrogen gas is added?
    14·1 answer
  • What is the charge on an atom after it loses an electron during the formation of a bond?
    8·1 answer
  • Which of the following is an example of a force that acts at a distance?
    15·2 answers
  • Chemistry practice ​
    6·1 answer
  • 8. Water behind a dam, a moving car, and electricity moving in a circuit all are examples of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!